Check-in adds an "mtime" column
to the table that holds report formats so that a "configuration sync"
operation will always take the most recently edited report format from
the two repositories being synced.  This should fix the problem described
here.

Note, however, that a
| irreversible schema change]
occurs when upgrading to the new version.  And you need to upgrade all
participating repositories before the fix will take effect.

Note also that when upgrading the "mtime" field is initialized to the
time of the upgrade.  So after upgrading two repos A and B, the first
time you do a configuration sync, the one that was updated second will
have the most recent mtime values on all entries and hence its report
formats will always dominate over the report formats in the other
repository.  So be careful that you do not overwrite report formats
(or other configuration information such as user passwords and capabilities)
that you care about.  Upgrade the definitive repository last.